| With the continuous increase of atmospheric CO2 concentration caused by human activities, a series of environmental issues, including the intensification of the greenhouse effect, have become increasingly severe. Synthesizing value-added chemicals and energy carriers through CO2 capture and hydrogenation is an effective way to recycle CO2. It can not only reduce the concentration of greenhouse gases in the atmosphere, but also meet part of the energy demand, which is of great significance in the environment and energy fields. CH3OH, as a product of CO2 hydrogenation, which has a wide range of application values is an important chemical of environment and energy fields. The key to the industrialization of this method is to develop high-performance catalysts for converting CO2 into CH3OH efficiently at a controllable cost. This paper mainly introduces the reaction mechanism of CO2 hydrogenation to CH3OH and primarily provides a review of the latest progress on seven noble metal heterogeneous catalysts, including Ru, Rh, Pd, Ag, Ir, Pt, and Au, classified by element. Additionally, it discusses the effects of active metal components, supports and other factors on activity, selectivity and stability of catalysts. |
